Cabling for the ALMA correlator

The ALMA correlator, one of the most powerful supercomputers in the world, has now been fully installed and tested at its remote, high altitude site in the Andes of northern Chile. This photograph shows just some of the many thousands of cables needed to connect the electronics racks of the correlator together. The full system requires 32768 rack-to-rack digital interfaces and 16384 cables to transport the signals between the racks.